After 50 it's too late to add years
Short answerNo
On this page
No. The biggest US study of habits and lifespan measured from 50, and at that age women with five healthy habits could expect about 14 more years than women with none, and men about 12. People who quit smoking at 45 to 54 gained about 6 years over people who kept going. And people who only took up exercise in midlife ended up with almost the same lower death rate as people active all their lives.
What we’d do
If you smoke, quit first. Then walk briskly for 30 minutes a day and add two strength sessions a week. Those are the habits with the most years attached, and none of them needs to have started at 25. If you haven’t exercised in years, start with walking and build up over a couple of months.
If you remember three things
- Late starters caught up. People who were inactive for most of their adult life and took up exercise at 40 to 61 had a 35% lower death rate, against 36% for people active all along.
- Quitting still pays late. Quitting at 45 to 54 gave back about 6 years, and British doctors who quit at 60 still gained about 3.
- Muscle answers training at any age. Nursing home residents aged about 90 more than doubled their leg strength in 8 weeks.
Why everyone believes it
By 50 you’ve had your habits for decades, and some of the changes in your body feel permanent. Your knees complain, the weight is harder to shift, and the damage from the smoking or the sitting feels like it’s already done. Most fitness advice is aimed at the young, so it’s easy to feel you’ve missed the window.
A picture from daily life
Think of a retirement account at 50. The deposits you didn’t make at 25 are gone, and you can’t get them back. But the account still grows from what you put in now, and at 50 most people have 30 or more years left for it to grow.
What happened to people who started late?
In the NIH-AARP study, 315,059 Americans aged 50 to 71 described how active they’d been in their teens, their 20s, their late 30s and from 40 to 61, and researchers followed who died over the next 15 years or so. Compared with people who were inactive all their adult lives, those who stayed active throughout had a 36% lower death rate. People who’d been inactive for most of their adult life and became active from 40 to 61 had a 35% lower death rate, about the same. The authors concluded that midlife is not too late to start.
What do the other studies say?
Five habits at 50
123,219 US health professionals, followed up to 34 years. Li, Circulation, 2018
At 50, women with all five habits could expect 43.1 more years and women with none 29.0. For men it was 37.6 and 25.5. Those with four or five habits also lived more of those years free of diabetes, heart disease and cancer.
These people had their habits at 50. The study didn’t follow people who changed.
Quitting smoking
202,248 US adults. Jha, New England Journal of Medicine, 2013. And 34,439 British doctors over 50 years. Doll, BMJ, 2004
Quitting at 45 to 54 gained about 6 years over continuing. The British doctors who quit at 50 gained about 6 and at 60 about 3.
Quitting earlier gains more. Quitting before 40 avoided about 90% of the extra risk.
Lifting
147,374 US adults, followed up to 30 years. Zhang, British Journal of Sports Medicine, 2026
90 to 119 minutes a week of strength training went with a 13% lower death rate, on top of aerobic exercise.
It followed people, so the lifters may have been healthier in other ways.
Strength at 90
100 nursing home residents, average age 87. Fiatarone, New England Journal of Medicine, 1994
Ten weeks of strength training raised strength by 113%, against 3% in people who didn’t train.
It measured strength. It didn’t measure years lived.
In our calculator, going from no exercise to 30 minutes a day at 50 adds about 6 to 7 years, and a smoker always gets quitting as the first change. See your own estimate.
Don’t the people who change at 50 just differ?
The sceptic says
People who take up exercise at 50 are different. They may be richer, less sick and more motivated, so of course they do better.
The reply
Some of that is true. But the late starters did as well as people active since their teens, who were motivated too. Quitters did better than people who kept smoking at every age the studies measured. And in the nursing home trials, the researchers changed people’s strength on purpose, in people up to 98, in 8 to 10 weeks.
What about 70 or 80?
The gains in years get smaller, but what you can do still improves. Quitting at 60 still gave back about 3 years. Balance and leg strength decide falls and independence, and they respond to training in people in their 90s. How do you keep your healthy years?
8 sources
- Li Y and others, Impact of Healthy Lifestyle Factors on Life Expectancies in the US Population, Circulation, 2018pmc.ncbi.nlm.nih.gov
- Li Y and others, Healthy lifestyle and life expectancy free of cancer, cardiovascular disease, and type 2 diabetes: prospective cohort study, BMJ, 2020pmc.ncbi.nlm.nih.gov
- Jha P and others, 21st-century hazards of smoking and benefits of cessation in the United States, New England Journal of Medicine, 2013pubmed.ncbi.nlm.nih.gov
- Doll R and others, Mortality in relation to smoking: 50 years' observations on male British doctors, BMJ, 2004pubmed.ncbi.nlm.nih.gov
- Saint-Maurice PF and others, Association of Leisure-Time Physical Activity Across the Adult Life Course With All-Cause and Cause-Specific Mortality, JAMA Network Open, 2019pmc.ncbi.nlm.nih.gov
- Zhang Y and others, Long-term resistance training with all-cause and cause-specific mortality, British Journal of Sports Medicine, 2026pubmed.ncbi.nlm.nih.gov
- Fiatarone MA and others, High-intensity strength training in nonagenarians. Effects on skeletal muscle, JAMA, 1990pubmed.ncbi.nlm.nih.gov
- Fiatarone MA and others, Exercise training and nutritional supplementation for physical frailty in very elderly people, New England Journal of Medicine, 1994pubmed.ncbi.nlm.nih.gov
